Gearing.



P. DAIMLER. GEARING.

APPLICATION FILED OCT. 25. 190,6-

Patented July 25, 1916l illlllllllllllllll UNITED sTATEs lPATENT Ormea.

PAUL DAIMLER, OF UNTERTRKI-EIM, GERMANY, ASSIGNOR T0 THE FIRM 40F DAIMLER MOTOREN-GESELLSCHAFT, OF UNTERTRKHEIM, NEAR STUTTGART, l'

GERMANY.

GEARING.

iaeaevv.

electric machine or pump in alinement with the first shaft of the speed varying mechanism and driving the front and back wheels of the vehicle by two shafts in alinement with each other situated below the speed changing mechanism or second shaft thereof coupled with the latter by means of two carrier wheels adapted to be brought in and out ofgear whereby the number of speeds imparted to the front and back wheels of the vehicle is multiplied compared with the mechanism hitherto known. The low positions of the said two shafts underneath the second shaft of the speed changing mechanism permits of bringing them directly underneath the fly wheel forward and backward underneath a machine on the motor vehicle, the drivingshaft of which is in alinement with the first shaft of the speed changing gear and canY therefore be driven directly from the latte by means of a coupling. I-Iitherto in speed changing mechauism where already the second shaft of the speed `changing mechanism is brought backward there is insufficient room above thls shaft to arrange the shaft of the dynamo or pump in alinement with the first shaft, it is equally impossible to bring this shaft' forward because its extension would meet the fly wheel. I .attain this object by the means illustrated in the accompanying drawing which shows principally a longitudinal section.

Referring to the drawing, the power gen-` erated by the motor is inthe usual way transmitted from the fly wheel n provided with the friction clutch. u upon the first shaft a of the speed changingmechanism; the latter has as, usual two slidable sleeves al, f each carrying a wheel 1, 2 and 5, 7 respectively, while on the second shaft are keyed four wheels, 2, 4, 6, 8 of varying di- Specification of Letters Patent.

` Application led .October 25, 1906. Serial No. 340,548.

s shaft.'

Patented July 25., 1916.

ameters arranged as usually so that by displaclng the sleeve d or f to the left orright,

the wheel l will be brought into gear with the wheel 2, or 3 with'll, .or 5 with 6, or Z wlth 8, each of the .said positions corresponding with a certam speed of the second mentioned in order that the present invention will be better understood.

Upon the shaft b are further mounted two wheels 9 and l2 and upon the shaft c loosely the sleeve p. Upon the sleeve p are loosely mounted the two wheels 10 and 11, the wheel 11 being in gear .withf'the wheel 12 andthe wheel 10 with the wheel 9 of theshaft Z). The wheels 12 and 1l'- are of equal diameter while that of 9 and 10 may be increased or reduced as may be found necessary. The clutch coupling g slidable on the sleeve p, permits of connecting at will with the sleeve j), one or the other of the two wheels 10 and ll. Hence after having brought into gear one of the two wheels 10, 11, the sleeve p will ybe driven; the latter transmits motion to the differential gear casing h and this rotates the two shafts c and z', the well known action of the differential gear however causing the shaft a to run at a less speed than the shaft o as is required, when taking acute curves or turning the car, at which time the distance traveled by the front wheels'and the distance traveled by the back wheels are unequal.

In order to permit of disconnecting the differential gear when desired, a clutch /c is arranged upon the shaft e, which when engaged connects together the shaft z and the differential gear casing. It will thus be seen, that the shafts c, z are driven from the sleeve g either with or without the differential gear in operation and as the sleeve g may not only be rotated at any of the four speeds which the second shaft b has, but at four further speeds obtained through the wheels 9 and 10, it follows that the shafts 9 and 10 can bedriven at eight different speeds. Between the shafts z and c differential gearing h and a clutch coupling 7c are arranged. The shaft .e transmits motion ,to the back wheels while the front wheels are driven from the shaft c. Owing to the low position of the shaft e extending to the back wheels it is, as previously Imentioned, possible to So employ above this shaft a pump or a dynamo r, as shown in the drawing,

his arrangement is old and is onlyv that the shaft t arrying the armature is-in alnement with the top shaft a of the speed changing mechanism and can be coupled therewith b 'means of a clutch As will e seen from the drawing, by driving the vehicle from shafts n and z instead of as hitherto from the second shaft b, not only the back wheels can be driven from the shafts o, .a but also the front Wheels as the shaft o, is situated solowthat it can be carried underneath past the fly wheel which is a great advantage; a art from this the distance between the sha t's c, a and the shaft a permits also that a machine 1' on the motor vehicle may be arranged in alinement with the shaft a which very much facilitates the driving ofthe said machine.'

In a motor driven vehicle, a driving shaft, a motor shaft for driving said shaft, a fly and change speed gearing operatively conf 'necting said driving and intermediate shafts and said diHerential gearing.

In testimony whereof I hereunto aix my signature in presence of two witnesses.

PAUL DAIMLER. Witnesses:

ROBERT UHLAND, ERNST ENTENMANN. 

